Height-adjustable hydraulic agricultural chassis

Abstract

The application discloses height-adjustable hydraulic agricultural chassis, including chassis body, the chassis body upper end front side fixedly connected with engine, the chassis body upper end rear side fixedly connected with hydraulic pump, the chassis body four corners are all fixedly connected with fixed frame, the fixed frame bottom all is provided with drive assembly. In the application, the height of the chassis body is adjusted through four hydraulic cylinders, each hydraulic cylinder adjusts a walking wheel, the extension amount of the adjusting hydraulic cylinder can adjust the levelness of the chassis body, and each hydraulic cylinder is controlled by a reversing valve, four hydraulic motors provide forward power, a speed reducer is connected to reduce the speed, the flow pressure of each hydraulic motor is controlled by a reversing valve, the set hydraulic shock absorber can play the role of buffering and damping, and the steering angle of the drive assembly can be adjusted through the set steering assembly, so that steering, U-turn and transverse movement in a narrow space are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural machinery technology, and particularly relates to a height-adjustable hydraulic agricultural chassis. BACKGROUND

[0002] With the development of intelligent agricultural machinery technology, the application scenarios of agricultural machinery chassis tend to be diversified, and the requirements of complex operation environment for the chassis are increasingly numerous.

[0003] In order to meet the height requirements of different crops or different periods of the same crop, the agricultural machinery chassis also needs to have a ground clearance adjusting device without affecting the functions of other systems of the chassis. At the same time, due to the severe working conditions, the agricultural machinery chassis is seriously jolted, so it also needs a good damping device, which can not only improve the comfort of the driver, but also ensure the stability of the agricultural machinery. In the field, the agricultural machinery is difficult to turn around and turn in some narrow boundaries, and a more flexible steering structure is needed. In order to overcome these disadvantages, the present application provides a height-adjustable hydraulic agricultural chassis. SUMMARY

[0004] The height-adjustable hydraulic agricultural chassis is provided to solve the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: the height-adjustable hydraulic agricultural chassis comprises a chassis body, an engine is fixedly connected to the front side of the upper end of the chassis body, a hydraulic pump is fixedly connected to the rear side of the upper end of the chassis body, a fixed frame is fixedly connected to each corner of the chassis body, a driving assembly is arranged at the bottom end of each fixed frame, a support plate is fixedly connected between the left and right adjacent fixed frames, a steering assembly for driving the driving assembly to rotate is arranged at the upper end of the support plate, a hydraulic oil tank and a fuel tank are fixedly connected to the both sides of the bottom end of the chassis body, and a storage battery is fixedly connected to the middle position of the bottom end of the chassis body.

[0006] Further, a generator is arranged on one side of the engine, and the generator is electrically connected with the storage battery.

[0007] Further, the driving assembly comprises a first support frame, a first fixing seat is fixedly connected to the upper end of the first support frame, a second support frame is rotatably connected to one side of the first support frame, and a second fixing seat is fixedly connected to the upper end of the second support frame.

[0008] Further, a hydraulic shock absorber is arranged between the first fixing seat and the second fixing seat, and a first connecting block and a second connecting block are fixedly connected to the two ends of the hydraulic shock absorber, respectively, the first connecting block is rotatably connected with the first fixing seat, and the second connecting block is rotatably connected with the second fixing seat.

[0009] Further, the first support frame one side middle position fixedly connected with support block, the support block upper end fixedly connected with hydraulic cylinder, the hydraulic cylinder upper end fixedly connected with mounting seat, the mounting seat upper end fixedly connected with connecting shaft, the connecting shaft with fixed frame rotationally connected, the connecting shaft upper end fixedly connected with worm wheel.

[0010] Further, the first support frame one side both ends are fixedly connected with fourth fixed seat, both ends of mounting seat are fixedly connected with third fixed seat, corresponding third fixed seat and fourth fixed seat are provided with telescopic rod, both ends of telescopic rod are respectively rotationally connected with corresponding third fixed seat and fourth fixed seat.

[0011] Further, the first support frame one side fixedly connected with speed reducer, the speed reducer one side fixedly connected with hydraulic motor, the hydraulic motor output end and speed reducer input end fixedly connected, the first support frame outside fixedly connected with fixed disc, the speed reducer output end penetrates first support frame and fixed disc fixedly connected with brake disc, the fixed disc is fixedly connected with hydraulic piston brake, the brake disc outside fixedly connected with mounting disc, the mounting disc is bolted with walking wheel.

[0012] Further, the steering assembly includes a double-shaft motor fixedly connected to the support plate, both ends of the output end of the double-shaft motor are fixedly connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a worm, and the worm is meshingly connected with the corresponding worm wheel.

[0013] The beneficial effects of the present application are as follows:

[0014] The height-adjustable hydraulic agricultural chassis adjusts the height of the chassis body through four hydraulic cylinders, each hydraulic cylinder adjusts one walking wheel, the extension amount of the hydraulic cylinder can adjust the levelness of the chassis body, and each hydraulic cylinder is controlled by one reversing valve, four hydraulic motors are provided to provide forward power, a speed reducer is connected to reduce the speed, each hydraulic motor flow pressure is controlled by one reversing valve, and the hydraulic shock absorber can play a buffering and damping role, and the steering angle of the driving assembly can be adjusted through the steering assembly, so that the steering, U-turn and transverse movement in a narrow space are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed to be used in the specific implementation manner. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 : front view of the present application;

[0017] Figure 2 : A schematic structural diagram of the steering assembly of the present invention;

[0018] Figure 3 : Schematic diagram of the bottom structure of the chassis body of the present invention;

[0019] Figure 4 : Schematic diagram of the drive assembly structure of the present invention;

[0020] Figure 5 : Schematic diagram of the drive assembly structure of the present invention.

[0021] Figure 6 : Schematic diagram of the drive assembly structure of the present invention;

[0022] Figure 7 : Schematic diagram of the driving assembly turning and U-turn structure of the present invention;

[0023] Figure 8 : Schematic diagram of the steering and lateral movement structure of the drive assembly of the present invention.

[0024] The reference numerals are as follows:

[0025] 1. Chassis body; 2. Engine; 3. Hydraulic pump; 4. Fixed frame; 5. Support plate; 6. Steering assembly; 7. Drive assembly; 8. Dual-axis motor; 9. Rotating shaft; 10. Worm; 11. Hydraulic oil tank; 12. Fuel tank; 13. Battery; 14. First support frame; 15. First fixed seat; 16. First connecting block; 17. Hydraulic shock absorber; 18. Second connecting block; 19. Second support frame; 20. Second fixed seat; 21. Travel wheel; 22. Support block; 23. Hydraulic cylinder; 24. Mounting seat; 25. Connecting shaft; 26. Worm gear; 27. Third fixed seat; 28. Fourth fixed seat; 29. ​​Telescopic rod; 30. Reducer; 31. Hydraulic motor; 32. Fixed plate; 33. Hydraulic piston brake; 34. Brake disc; 35. Mounting plate. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] like Figures 1-8 As shown, the present invention has the following specific embodiments.

[0028] Example 1

[0029] The height-adjustable hydraulic agricultural chassis includes a chassis body 1, an engine 2 fixedly connected to the front side of the upper end of the chassis body 1, a hydraulic pump 3 fixedly connected to the rear side of the upper end of the chassis body 1, fixed brackets 4 fixedly connected to the four corners of the chassis body 1, a drive assembly 7 provided at the bottom end of each fixed bracket 4, a support plate 5 fixedly connected between adjacent fixed brackets 4 on the left and right, a steering assembly 6 for driving the drive assembly 7 to rotate provided at the upper end of the support plate 5, a hydraulic oil tank 11 and a fuel tank 12 fixedly connected to both sides of the bottom end of the chassis body 1, radiators provided on both hydraulic oil tanks 11 and fuel tanks 12, and a battery 13 fixedly connected to the middle position of the bottom end of the chassis body 1;

[0030] A driving position and an operation box can be provided on the chassis body 1 , and the forward, backward and steering of the chassis body 1 can be controlled by manually operating the operation box.

[0031] In this embodiment, the engine 2 is connected to the hydraulic pump, which can provide the required power for the hydraulic system. The provided battery 13 can provide electricity for the steering assembly 6. The provided drive assembly 7 can drive the device to move, and the drive assembly 7 can be height-adjusted to facilitate the height adjustment of the chassis body 1. The provided steering assembly 6 can adjust the steering angle of the drive assembly 7 to facilitate steering, U-turn and lateral movement in a narrow space.

[0032] Example 2

[0033] A generator is provided on one side of the engine 2 , and the generator is electrically connected to the battery 13 .

[0034] In this embodiment, the engine 2 drives the generator to generate electricity, and the electrical energy can be stored in the battery 13.

[0035] Example 3

[0036] The driving assembly 7 comprises a first support frame 14, the upper end of the first support frame 14 is fixedly connected with a first fixed seat 15, one side of the first support frame 14 is rotatably connected with a second support frame 19, the upper end of the second support frame 19 is fixedly connected with a second fixed seat 20, a hydraulic shock absorber 17 is arranged between the first fixed seat 15 and the second fixed seat 20, the two ends of the hydraulic shock absorber 17 are fixedly connected with a first connecting block 16 and a second connecting block 18 respectively, the first connecting block 16 is rotatably connected with the first fixed seat 15, the second connecting block 18 is rotatably connected with the second fixed seat 20, a support block 22 is fixedly connected to the middle position of one side of the first support frame 14, a hydraulic cylinder 23 is fixedly connected to the upper end of the support block 22, a mounting seat 24 is fixedly connected to the upper end of the hydraulic cylinder 23, a connecting shaft 25 is fixedly connected to the upper end of the mounting seat 24, the connecting shaft 25 is rotatably connected with the fixed frame 4, a worm wheel 26 is fixedly connected to the upper end of the connecting shaft 25, fourth fixed seats 28 are fixedly connected to the two ends of one side of the first support frame 14, third fixed seats 27 are fixedly connected to the two ends of the mounting seat 24, telescopic rods 29 are arranged between the corresponding third fixed seats 27 and fourth fixed seats 28, the two ends of the telescopic rods 29 are rotatably connected with the corresponding third fixed seats 27 and fourth fixed seats 28 respectively, a speed reducer 30 is fixedly connected to one side of the first support frame 14, a hydraulic motor 31 is fixedly connected to one side of the speed reducer 30, the output end of the hydraulic motor 31 is fixedly connected with the input end of the speed reducer 30, a fixed disc 32 is fixedly connected to the outer side of the first support frame 14, a brake disc 34 is fixedly connected to the output end of the speed reducer 30 and penetrates through the first support frame 14 and the fixed disc 32, a hydraulic piston brake 33 is fixedly connected to the fixed disc 32, a mounting disc 35 is fixedly connected to the outer side of the brake disc 34, and a walking wheel 21 is bolted to the mounting disc 35.

[0037] In the embodiment, the hydraulic motor 31 can drive the walking wheel 21 to rotate after being decelerated by the speed reducer 30, the hydraulic piston brake 33 and the brake disc 34 arranged can brake the walking wheel 21, the hydraulic shock absorber 17 arranged can buffer and absorb the shock of the chassis body 1, the hydraulic cylinder 23 arranged can adjust the height of the chassis body 1, and the telescopic rods 29 arranged can improve the connection strength.

[0038] Embodiment 4

[0039] The steering assembly 6 comprises a double-shaft motor 8 fixedly connected with the support plate 5, the output ends of the double-shaft motor 8 are fixedly connected with rotating shafts 9, one end of the rotating shaft 9 is fixedly connected with a worm 10, and the worm 10 is meshingly connected with the corresponding worm wheel 26.

[0040] In the embodiment, the double-shaft motor 8 drives the rotating shaft 9 to rotate, and the transmission of the worm 10 and the worm wheel 26 can drive the driving assembly 7 to rotate around the fixed frame 4 through the connecting shaft 25.

[0041] The overall working principle of the present application is as follows:

[0042] The chassis body 1 can be provided with a driving position and an operation box, the chassis body 1 is controlled to advance, retreat and turn through manual operation of the operation box, the hydraulic motor 31 can drive the walking wheel 21 to rotate after being decelerated by the speed reducer 30, the walking wheel 21 can be braked through the hydraulic piston brake 33 and the brake disc 34 provided, the height of the chassis body 1 is adjusted through the four hydraulic cylinders 23, each hydraulic cylinder 23 adjusts one walking wheel 21, the levelness of the chassis body 1 can be adjusted by adjusting the extension amount of the hydraulic cylinder 23, and each hydraulic cylinder 23 is controlled by one reversing valve, the rotating shaft 9 is driven to rotate by the double-shaft motor 8, the driving assembly 7 can be driven to rotate around the fixed frame 4 through the transmission of the worm 10 and the worm wheel 26 through the connecting shaft 25.

[0043] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that the persons skilled in the art can well understand and use the application. The application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A height-adjustable hydraulic agricultural chassis, comprising a chassis body (1), characterized in that: The front side of the upper end of the chassis body (1) is fixedly connected to an engine (2), the rear side of the upper end of the chassis body (1) is fixedly connected to a hydraulic pump (3), the four corners of the chassis body (1) are fixedly connected to fixing frames (4), the bottom ends of the fixing frames (4) are each provided with a driving assembly (7), a support plate (5) is fixedly connected between the left and right adjacent fixing frames (4), the upper ends of the support plates (5) are provided with a steering assembly (6) for driving the driving assembly (7) to rotate, the two sides of the bottom end of the chassis body (1) are respectively fixedly connected to a hydraulic oil tank (11) and a fuel tank (12), and the middle position of the bottom end of the chassis body (1) is fixedly connected to a battery (13); The driving assembly (7) comprises a first support frame (14), the upper end of the first support frame (14) is fixedly connected to a first fixing seat (15), one side of the first support frame (14) is rotatably connected to a second support frame (19), and the upper end of the second support frame (19) is fixedly connected to a second fixing seat (20); A support block (22) is fixedly connected to the middle position of one side of the first support frame (14); a hydraulic cylinder (23) is fixedly connected to the upper end of the support block (22); a mounting seat (24) is fixedly connected to the upper end of the hydraulic cylinder (23); a connecting shaft (25) is fixedly connected to the upper end of the mounting seat (24); the connecting shaft (25) is rotatably connected to the fixed frame (4); and a worm gear (26) is fixedly connected to the upper end of the connecting shaft (25); Both ends of one side of the first support frame (14) are fixedly connected to a fourth fixing seat (28), and both ends of the mounting seat (24) are fixedly connected to a third fixing seat (27), and a telescopic rod (29) is provided between the corresponding third fixing seat (27) and the fourth fixing seat (28), and both ends of the telescopic rod (29) are rotatably connected to the corresponding third fixing seat (27) and the fourth fixing seat (28); A reducer (30) is fixedly connected to one side of the first support frame (14), a hydraulic motor (31) is fixedly connected to one side of the reducer (30), an output end of the hydraulic motor (31) is fixedly connected to an input end of the reducer (30), a fixed disk (32) is fixedly connected to the outside of the first support frame (14), an output end of the reducer (30) passes through the first support frame (14) and the fixed disk (32) and is fixedly connected to a brake disk (34), a hydraulic piston brake (33) is fixedly connected to the fixed disk (32), a mounting disk (35) is fixedly connected to the outside of the brake disk (34), and a travel wheel (21) is bolted to the mounting disk (35); The steering assembly (6) includes a dual-axis motor (8) fixedly connected to the support plate (5), both ends of the output end of the dual-axis motor (8) are fixedly connected to a rotating shaft (9), one end of the rotating shaft (9) is fixedly connected to a worm (10), and the worm (10) is meshedly connected to a corresponding worm wheel (26).

2. The height-adjustable hydraulic agricultural chassis according to claim 1, characterized in that: A generator is provided on one side of the engine (2), and the generator is electrically connected to the battery (13).

3. The height-adjustable hydraulic agricultural chassis according to claim 1, characterized in that: A hydraulic shock absorber (17) is provided between the first fixing seat (15) and the second fixing seat (20), and a first connecting block (16) and a second connecting block (18) are fixedly connected to both ends of the hydraulic shock absorber (17), respectively. The first connecting block (16) is rotatably connected to the first fixing seat (15), and the second connecting block (18) is rotatably connected to the second fixing seat (20).

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